Paper container



Dec. 31, 1929. E. c. ANGELL PAPER CONTAINER Filed Nov. 2, 1927 almwm EOAngeZZ 351 711's Gum/m Patented Dec. 31, 1929 PATENT OFFICE EDWARD c. ANGELL,

OF NEW YORK, N. Y.

PAPER CONTAINER Application med November 2, 1927. Serial no. 230,409.

The present invention-has reference to receptacles or containers formed of paper or 4 the like material, wherein the container in the form of a somewhat cylindrical body is provided wth a bottom in its manufacture or production, and when filled the containermay be closed by a cap or cover in one mode of use,

and in another use of the articles, the top is collapsed or pressed together and sealed by a suitable clamping member such as a bent strip of metal.

he present invention relates particularly to a new arrangement of the lapped edges of the body, where a sheet or blank is bent or rolled, and the edges or margins lapped and secured by asuitable adhesive such as glue. One object of the present invention is to provide improved means for making the lap joint where the margins are caused to adhere by the glue, in the form of flutes or corrugations, and which preferably extend longitudinally in the direction of the edges.

In the accompanying drawings showing embodiments of my invention:

Fig. 1 is a side elevation of a container of the tapered form with the top collapsed and sealed.

Fig. 2 is a side elevation of the same.

Fig; 3 is a cross section.

Figs. 4 and 5 show different forms of the flutes.

Fig. 6 shows the container with cylindrical walls.

The container or receptacle is shown formed of a body 2 which is a blank or sheet of paper that is bent to atubular form, with the margins lapping as i is so formed that the tubular body will be of a conical form or tapered upwardly, after the margins have been secured by lapping, with the suitable adhesive between the engaged faces. A bottom 5 is inserted and secured by suitable means or mechanism, such as rolling the edges of the blank and of the flanged bottom member, which is well known in this art.

Where the flat form, with the lapping edges that are secure by a suitable adhesive, the edge of the outer margin has a tendency to move outwardly, to

blank is rolled to a tubular by bringing together the lapped at 3 and 4. In Figs. 1-5 the blank remain in the former flat position. To insure a tight seal throughout the lapped margin, I have the lapped portions indented, or made of such form that they will tightly adhere. As shown in Figs. 1 and 3 I arrange flutes or corrugations extending longitudinally, in the direction of the edges, and which correspond in the two lapped portions, and are caused to register as indicated in Fig. 3. This is preferably done by pressing means engaging the inner and outer faces of the lapped portion, that will have a corrugated contour and thus force together these fluted portions with the interposed adhesive. This may be done portions in the fiat form of the blank, and two corrugated pressing members will thus form these corrugations at the same time that the lapped portions are brought together. In this art it is customary to wrap mandrel with a suitable adhesive between the lapped edges, and then a plunger or presser is brought down to press the lapped edges against the mandrel. These members are preferably provided with corrugated faces that will produce the result set' forth. In Fig. 4 a similar arrangement is .shown in which the corrugations at 7 extend slightly inclined to the longitudinal edges, which obviously can be done by forming such corrugations in the pressing members. In Fig. 5 a. similar arrangement is shown in which the corrugations or flutes at 8 extend in opposite directions and intersect.

In Fig. 6 a container is shown in which the tubular body form is cylindrical, instead of tapered. It is obvious that the same arrangement of corrugations can be formed in the lapping edges of the blank as set forth, in such a container, and in the same manner.

Where the containers are sealed by a bent strip as 9, after collapsing or pressing together the upper edges, and then applying. and closing the strip, the corrugations are preferably omitted at the top and which terminate a short distance beyond this end of the container. This will make a better clos-' d ing or seal by the bent strip. The same form of a cylindrical container is shownin Fig. 6, the corrugations terminating back of the open the blank around a end, and thus will not engage the flange of the usual cap.

What I claim is:

1. A paper receptacle including a body formed of a sheet of material shaped to tubular form andhaving its longitudinal edges lapping and provided on their confronting faces with adhesive, said lapping edges being corrugated with a series of narrow and equal corrugations symmetrical on opposite sides ofthe sheet, said corrugations running in' a direction non-perpendicular to said longitudinal edges whereby to provide mechanical resistance to separation by slippingone over the other in a direction perpendicular to the said longitudinal edges.

2. A formed of a sheet of material shaped to tubular form and having its -longitudinal edges lapping and provided on their confronting faces with adhesive, said lapping edges being corrugated with a series of narrow and equal corrugations symmetrical on opposite sides of the sheet, said corrugations running in a direction parallel to said longitudinal edges to provide mechanical resistance to lateral slipping and to increase the adhesive area.

Signed at 31,1927.

- EDWARD C. ANGELL,

memeo paper receptacle including a body New York city, N. Y, on October- 

